Insights into Ti doping for stabilizing the Na2/3Fe1/3Mn2/3O2 cathode in sodium ion battery

Tingting Yang; Yalan Huang; Jian Zhang; He Zhu; Jincan Ren; Tianyi Li; Leighanne C. Gallington; Si Lan; Ligao Yang; Qi Liu

doi:10.1016/j.jechem.2022.06.016

Insights into Ti doping for stabilizing the Na_2/3Fe_1/3Mn_2/3O₂ cathode in sodium ion battery

Tingting Yang, Yalan Huang, Jian Zhang, He Zhu, Jincan Ren, Tianyi Li, Leighanne C. Gallington, Si Lan, Ligao Yang^*, Qi Liu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

92 Citations (Scopus)

Abstract

Iron- and manganese-based layered metal oxides, as cathodes for sodium ion batteries, have received widespread attention because of the low cost and high specific capacity. However, the Jahn-teller effect of Mn³⁺ ions and the resulted unstable structure usually lead to continuously capacity decay. Herein, Titanium (Ti) has been successfully doped into Na_2/3Fe_1/3Mn_2/3O₂ to suppress the Jahn-Teller distortion and improve both cycling and rate performance of sodium ion batteries. In situ high-energy synchrotron X-ray diffraction study shows that Ti-doped compound (Na_2/3Fe_1/3Mn_0.57Ti_0.1O₂) can maintain the single P2 phase without any phase transition during the whole charging/discharging process. Various electrochemical characterizations are also applied to explore the better kinetics of sodium ions transfer in the Na_2/3Fe_1/3Mn_0.57Ti_0.1O₂. This work provides a comprehensive insight into the Ti-doping effects on the performance from both structural and electrokinetic perspectives.

Original language	English
Pages (from-to)	542-548
Journal	Journal of Energy Chemistry
Volume	73
Online published	18 Jun 2022
DOIs	https://doi.org/10.1016/j.jechem.2022.06.016
Publication status	Published - Oct 2022

Funding

This study was supported by the National Key R&D Program of China (2020YFA0406203), the Shenzhen Science and Technology Innovation Commission (SGDX2019081623240948, JCYJ20200109105618137), the ECS scheme (CityU 21307019), and the Shenzhen Research Institute, City University of Hong Kong. This research also used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory (DE-AC02-06CH11357).

Research Keywords

In situ synchrotron X-ray diffraction
Jahn-Teller effect
Layered transition metal oxides
Phase transition

RGC Funding Information

RGC-funded

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jechem.2022.06.016

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title = "Insights into Ti doping for stabilizing the Na2/3Fe1/3Mn2/3O2 cathode in sodium ion battery",

abstract = "Iron- and manganese-based layered metal oxides, as cathodes for sodium ion batteries, have received widespread attention because of the low cost and high specific capacity. However, the Jahn-teller effect of Mn3+ ions and the resulted unstable structure usually lead to continuously capacity decay. Herein, Titanium (Ti) has been successfully doped into Na2/3Fe1/3Mn2/3O2 to suppress the Jahn-Teller distortion and improve both cycling and rate performance of sodium ion batteries. In situ high-energy synchrotron X-ray diffraction study shows that Ti-doped compound (Na2/3Fe1/3Mn0.57Ti0.1O2) can maintain the single P2 phase without any phase transition during the whole charging/discharging process. Various electrochemical characterizations are also applied to explore the better kinetics of sodium ions transfer in the Na2/3Fe1/3Mn0.57Ti0.1O2. This work provides a comprehensive insight into the Ti-doping effects on the performance from both structural and electrokinetic perspectives.",

keywords = "In situ synchrotron X-ray diffraction, Jahn-Teller effect, Layered transition metal oxides, Phase transition",

author = "Tingting Yang and Yalan Huang and Jian Zhang and He Zhu and Jincan Ren and Tianyi Li and Gallington, {Leighanne C.} and Si Lan and Ligao Yang and Qi Liu",

year = "2022",

month = oct,

doi = "10.1016/j.jechem.2022.06.016",

language = "English",

volume = "73",

pages = "542--548",

journal = "Journal of Energy Chemistry",

issn = "2095-4956",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Insights into Ti doping for stabilizing the Na2/3Fe1/3Mn2/3O2 cathode in sodium ion battery

AU - Yang, Tingting

AU - Huang, Yalan

AU - Zhang, Jian

AU - Zhu, He

AU - Ren, Jincan

AU - Li, Tianyi

AU - Gallington, Leighanne C.

AU - Lan, Si

AU - Yang, Ligao

AU - Liu, Qi

PY - 2022/10

Y1 - 2022/10

N2 - Iron- and manganese-based layered metal oxides, as cathodes for sodium ion batteries, have received widespread attention because of the low cost and high specific capacity. However, the Jahn-teller effect of Mn3+ ions and the resulted unstable structure usually lead to continuously capacity decay. Herein, Titanium (Ti) has been successfully doped into Na2/3Fe1/3Mn2/3O2 to suppress the Jahn-Teller distortion and improve both cycling and rate performance of sodium ion batteries. In situ high-energy synchrotron X-ray diffraction study shows that Ti-doped compound (Na2/3Fe1/3Mn0.57Ti0.1O2) can maintain the single P2 phase without any phase transition during the whole charging/discharging process. Various electrochemical characterizations are also applied to explore the better kinetics of sodium ions transfer in the Na2/3Fe1/3Mn0.57Ti0.1O2. This work provides a comprehensive insight into the Ti-doping effects on the performance from both structural and electrokinetic perspectives.

AB - Iron- and manganese-based layered metal oxides, as cathodes for sodium ion batteries, have received widespread attention because of the low cost and high specific capacity. However, the Jahn-teller effect of Mn3+ ions and the resulted unstable structure usually lead to continuously capacity decay. Herein, Titanium (Ti) has been successfully doped into Na2/3Fe1/3Mn2/3O2 to suppress the Jahn-Teller distortion and improve both cycling and rate performance of sodium ion batteries. In situ high-energy synchrotron X-ray diffraction study shows that Ti-doped compound (Na2/3Fe1/3Mn0.57Ti0.1O2) can maintain the single P2 phase without any phase transition during the whole charging/discharging process. Various electrochemical characterizations are also applied to explore the better kinetics of sodium ions transfer in the Na2/3Fe1/3Mn0.57Ti0.1O2. This work provides a comprehensive insight into the Ti-doping effects on the performance from both structural and electrokinetic perspectives.

KW - In situ synchrotron X-ray diffraction

KW - Jahn-Teller effect

KW - Layered transition metal oxides

KW - Phase transition

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U2 - 10.1016/j.jechem.2022.06.016

DO - 10.1016/j.jechem.2022.06.016

M3 - RGC 21 - Publication in refereed journal

SN - 2095-4956

VL - 73

SP - 542

EP - 548

JO - Journal of Energy Chemistry

JF - Journal of Energy Chemistry

ER -

Insights into Ti doping for stabilizing the Na_2/3Fe_1/3Mn_2/3O₂ cathode in sodium ion battery

Abstract

Funding

Research Keywords

RGC Funding Information

UN SDGs

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ECS: In Situ Scattering Study of Structural Dynamics and Capacity Fading Mechanism in NCM Cathode Materials

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Insights into Ti doping for stabilizing the Na2/3Fe1/3Mn2/3O2 cathode in sodium ion battery

Abstract

Funding

Research Keywords

RGC Funding Information

UN SDGs

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

ECS: In Situ Scattering Study of Structural Dynamics and Capacity Fading Mechanism in NCM Cathode Materials

Cite this

Insights into Ti doping for stabilizing the Na_2/3Fe_1/3Mn_2/3O₂ cathode in sodium ion battery